MDCAT Chemistry Online Test 1 Chemistry Preparation

ilmkibaat ilmkibaat
Jul 12, 2022 - 20:24 Updated: Jul 12, 2022 - 20:29
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1. Rusting can be avoided by:

Tin or zinc plating
Use of enamel
Making alloys
All of these

2. In the presence of high temperature and pressure peat, is converted to:

Anthracite
Lignite
Bituminous coal
Coal

3. The strongest bond is:

C – C
C = C
C ≡ C
All are equally strong

4. According to Planck, energy travels in a discontinuous manner and it is composed of large number of tiny discrete units called:

Photons
Quanta
Planta
Particles

5. The sum of mole fractions of components of a solution is equal to:

100
10
1

6. Benzene was first discovered by:

Gibbs
Anderson
Michael Faraday
Hofmann